| 间作对咖啡和澳洲坚果根系形态、分布及养分累积的影响 |
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| 引用本文： | 董云萍,朱华康,赵青云,孙燕,林兴军,张玲艳,龙宇宙. 间作对咖啡和澳洲坚果根系形态、分布及养分累积的影响[J]. 热带作物学报, 2021, 42(2): 405-413. DOI: 10.3969/j.issn.1000-2561.2021.02.015 |
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| 作者姓名： | 董云萍 朱华康 赵青云 孙燕 林兴军 张玲艳 龙宇宙 |
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| 作者单位： | 中国热带农业科学院香料饮料研究所/农业农村部香辛饮料作物遗传资源利用重点实验室/海南省热带香辛饮料作物遗传改良与品质调控重点实验室,海南万宁 571533;云南农业大学热带作物学院,云南普洱 665099 |
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| 基金项目： | 国家重点研发计划项目(2018YFD0201108-1);云南省重大科技专项计划项目(2018ZG015);中国热带农业科学院基本科研业务费项目(1630142017002) |
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| 摘 要： | 为探明澳洲坚果与咖啡间作对地上部生长及地下部互作效应,为生产推广复合高效栽培模式提供理论依据,布置了咖啡和澳洲坚果间作盆栽实验,以二者分别单作为对照,分析植株的生长量、生物量、养分含量、根系形态以及土壤养分的差异.结果表明:(1)间作咖啡和间作澳洲坚果根干重、茎干重、单株总干重分别为40.86、50.38、148.34...
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| 关 键 词： | 咖啡 澳洲坚果 间作 根系形态 分布 养分累积 |
| 收稿时间： | 2020-03-04 |
Effect of Coffee and Macadamia Intercropping on Root Morphology,Distribution and Nutrient Accumulation |
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| DONG Yunping,ZHU Huakang,ZHAO Qingyun,SUN Yan,LIN Xingjun,ZHANG Lingyan,LONG yuzhou. Effect of Coffee and Macadamia Intercropping on Root Morphology,Distribution and Nutrient Accumulation[J]. Chinese Journal of Tropical Crops, 2021, 42(2): 405-413. DOI: 10.3969/j.issn.1000-2561.2021.02.015 |
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| Authors: | DONG Yunping ZHU Huakang ZHAO Qingyun SUN Yan LIN Xingjun ZHANG Lingyan LONG yuzhou |
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| Affiliation: | 1. Spice and Beverage Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Ministry of Agriculture and Rural Affairs / Hainan Provincial Key Laboratory of Genetic Improvement and Quality Regulation for Tropical Spice and Beverage Crops, Wanning, Hainan 571533, China2. Tropical Crops College, Yunnan Agricultural University, Pu’er, Yunnan 665099, China |
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| Abstract: | In order to explore the effects on plant growth, root morphology, distribution and nutrient accumulation based on coffee-macadamia intercropping systems, an experiment was performed with three planting patterns: monoculture coffee (MC), monoculture macadamia (MM), and coffee-macadamia intercropping (IMC). The results showed that: (1) in IMC, the coffee leaves dry weight was no significantly compared with macadamia, but the root dry weight, stem dry weight and total dry weight per plant of coffee and Macadamia were as follows 40.86, 50.38, 148.34 g and 22.38, 33.19, 111.97 g. It showed those of coffee were significantly higher than those of Macadamia. the young coffee plant growth rate was faster than that of young Macadamia plant. The dry weight of coffee root, stem, leaves and total per plant dry weight were not significantly different in MC and in IMC, and so as the macadamia. (2) in IMC, the N accumulation of macadamia leaves was 2135.27 mg, significantly higher than that of coffee (1957.60 mg). Beyond that, the N,P and K accumulation of stem and root; the P and K accumulation of leaf; total N, P and K accumulation per plant for coffee were significantly higher than those of macadamia. As a result, the young coffee plant had more nutrient accumulation compared with macadamia. The N and K accumulation of macadamia root was 742.80, 103.22 mg in IMC, higher than that of 535.00, 37.77 mg in MM, indicating that the macadamia N allocation to root increased due to the root competition between the two, and root K accumulation increased. (3) The root length, root surface area and root volume near the side of coffee and macadamia root distribution position was accounted for 62.63%~65.67% of the total sampled, The second root distribution position was between the two plants, accounted for 16.01%~27.53% of the total sampled. The least was near the side of the correspond plant and beyond the side of the correspond plant. So more root of coffee and macadamia was observed atthere-self root niche, and the root was overlapping between the two plant root space, the spatial distribution of the two plants root system was not separated in soil depth and width, showing that the two crops intercropping had a competition root system. Coffee and macadamia are shallow rooted plants with, thin root diameter. Macadamia is a large tree, so it will be in dominant position in field intercropping. |
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| Keywords: | Coffea Arabica L. Macadamia ternifolia F. Muell intercropping root morphology distribution nutrient accumulation |
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